The journalist whose controversial Rolling Stone article ended the career of the U.S. commander in Afghanistan died almost instantaneously when he drove his Mercedes at high speed into a tree in Hollywood, according to a just-released coronerís report.

While small amounts of marijuana and methamphetamine were detected in the system of Michael Hastings, says the report, they likely did not contribute to his death.

Hastingsí charred body was pulled from the wreck of his silver 2013 Mercedes on North Highland Avenue after 4:20 a.m. on June 18.